A new water-preserving composite of polyacylamide/attapulgite (PAM-atta) was prepared by combining acylamide with attapulgite clay.Effects of PAM-atta on soil physical properties were investigated.The results indicated that soil water content,pH value,aggregates>0.25mm,porosity and cation exchange capacity increased with application rate of the composite.The finer the composite in particle size,the more significant the effect on soil water content and aggregates>0.25mm.The use of the composite that has passed a 120 mesh sieve may increase the content of soil aggregates>0.25mm up to 13.3%~16.2%.